MOD Title: Milestone CongratulationsMOD Description: Enables the setup of milestones for members to reach. These may consist of (numbers freely adjustable): Making the 1000th post, creating the 1000th topic or registering as the 50th user. The user accomplishing a goal will be displayed on the index page until the next milestone is reached. Upon reaching a milestone the counter automatically increments by an (once again) adjustable amount.

For you native speakers: Is it correct to say "The 3000. post" or should that read "The 3000th post"?

It would be much easier to say: "Post number 3000 was made by MartectX, congradulations!" You can totally avoid any "th" "nd" "st", etc.

I might also suggest placing commas in for delimiters every thousand count. i.e. instead of 1000000 (1 million), it would display 1,000,000. Makes it a bit easier to read for larger numbers, and since people usually gloss over the statistics section anyhow, they don't tend to let their eyes grab everything down there.